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Neighbourhood threats: landscape context and anthropogenic changes can trigger waterbird population collapse; Neighbourhood threats_ landscape context and anthropogenic changes can trigger waterbird population collapse.pdf
Chen, Sheng; Zhang, Yong; Xu, Chi; Cao, Lei; Huang, Zheng Y. X.; Li, Chunlin; Chen, Bin J. W.; Lu, Changhu; Xu, Wenbin; Song, Yunwei; de Boer, Willem Frederik
2022-09-20
Source PublicationLANDSCAPE ECOLOGY
ISSN0921-2973
Issue0Pages:1-18
AbstractContext Global biodiversity decreases rapidly, driven by various factors ranging from climate change to anthropogenic activities. Identifying driving forces of population decline is critical for biological conservation. Time-series data are especially valuable for this goal, but unfortunately, high-quality time-series data are generally lacking, hampering evidences-based conservation policy making. Objectives In this study, we examined how population growth rates of wintering waterbird species changed across 34 years (1986-2019) in response to changes in landscape context, climatic, ecological and anthropogenic factors in the Yangtze River Floodplain. Specifically: we aimed to (1) understand the factors that are correlated with the population trend of each waterbird species, and (2) identify the spatial scale at which each waterbird species responds to surrounding landscape changes. Methods We systemically collected wintering survey data from 1986 to 2019 in Shengjin Lake National Nature Reserve for six waterbird species including Oriental stork (Ciconia boyciana), Eurasian spoonbill (Platalea leucorodia), Tundra swan (Cygnus columbianus), Swan goose (Anser cygnoid), Hooded crane (Grus monacha) and White-naped crane (Grus vipio), coupled with climatic and anthropogenic data. Satellite images were analyzed to characterize ecological variables and landscape context (both in landscape and class levels). Results Our results suggested that anthropogenic landscape changes surrounding wetland habitats (i.e., landscape context) acted as the primary factors driving the waterbird population changes and were responsible for the observed population declines. In particular, increasing built-up areas and decreasing cropland areas associated with urbanization and human settlement expansion largely explained the declining population size. Our results also showed that different variables operated at a different scale of the landscape context, highlighting the importance of the surrounding landscape configuration at both small and larger scales, as built-up area was most important at around 8 km for most of the studied species, but cropland area expansion benefitted the two crane species at a larger spatial extent. The fishing ban policy implemented in 2017 provides an opportunity for reversing such declines, as positive effects of reduced human activities were observed in a portion of waterbird species. Conclusions The demonstrated strong effects of landscape context on wetland biodiversity illustrated that practical mitigating measures can increase conservation success if they not only target the wetland habitats per se but also include the surrounding non-wetland areas at larger spatial scales.
Department城市与区域生态国家重点实验室 ; 城市与区域生态国家重点实验室
KeywordHABITAT FRAGMENTATION LONG-TERM LAND-USE BIODIVERSITY WETLANDS CHINA FLOODPLAIN ABUNDANCE SELECTION LAKES
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47306
Collection城市与区域生态国家重点实验室
Corresponding AuthorZhang, Yong
Affiliation1.Nanjing Forestry Univ, Coll Biol & Environm, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Peoples R China
2.Nanjing Univ, Sch Life Sci, Nanjing 210023, Peoples R China
3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, 18 Shuangqing Rd, Beijing 100085, Peoples R China
4.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
5.Nanjing Normal Univ, Coll Life Sci, Nanjing 210046, Peoples R China
Recommended Citation
GB/T 7714
Chen, Sheng,Zhang, Yong,Xu, Chi,et al. Neighbourhood threats: landscape context and anthropogenic changes can trigger waterbird population collapse, Neighbourhood threats_ landscape context and anthropogenic changes can trigger waterbird population collapse.pdf[J]. LANDSCAPE ECOLOGY,2022(0):1-18.
APA Chen, Sheng.,Zhang, Yong.,Xu, Chi.,Cao, Lei.,Huang, Zheng Y. X..,...&de Boer, Willem Frederik.(2022).Neighbourhood threats: landscape context and anthropogenic changes can trigger waterbird population collapse.LANDSCAPE ECOLOGY(0),1-18.
MLA Chen, Sheng,et al."Neighbourhood threats: landscape context and anthropogenic changes can trigger waterbird population collapse".LANDSCAPE ECOLOGY .0(2022):1-18.
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